Brake-rigging for rolling-stock.



L. F. TUIVILINSON. BRAKE RLGGLNG FOR ROLLING STOCK,

AAPPLICATION FILED MAY 9\-19l6.

4 SHEETS-SHEET 'lf atented Mar. 13, L91?.A I

| L l l l l l l l L l l l l I L l l 1 l l l l x l l l I.

ATTORNEY WITNESSES T. F. ONILINSON.

BRAKE RIGGING FOR RoLLlNG sock'.'

APPLICATION man MAY 9.

Patented Mar. 13,1917

4` SHEETS-SHEET 2.

WITNESSE ATTQRNEN T. F. TONILINSON.

BRAKE RIGGING Fon ROLLING STOCK.

AFPLlCATlON FILED MAY 9. '1916.

Patented Mar. 13', 1917.

4 SHEETS-SHEET 3.

INVENTOR l, 'i l .E S SQ l N Th W ATTORNEY T. F. TOMLINSON.

BRAKE RIGGING FOR ROLLING STOCK.

APPLICATION FILEDMAY 9, 1915.'

1,218,720. Patented Mm, 13, 1917.

4 SHEETS-SHEET 4.

Ig". g 38 58 Ugg/a. 'G am@ I WITNESSS l y ATTORNEY Tran sTaTns TifiTTinT arribae THOMAS r. roifininson,y or LaariaiinTs POINT, Vmerniaf BRAKE-RIGGING FOR ROLLIN G-S'IOCK.

Application filed May 9,

To all whom it may conc/em.

Be it known that l, THOMAS F. To'iiLiN- son, a citizen of the United States, resid'- ing at Lamberts Point, in the county of Norfolk and State of Virginia, have Ainvented certain new and vuseful improvements in Brake-Rigging for Rolling-Stock, of which the following is aspeciiication.

This invention relates to brake rigging for rolling stock, the principal object being to provide an equally eiiicieiit braking mechanism under varying conditions.

Another object is to provide interchangeable levers which operate in conjunction with eomplementally reversible brake shoes, to provide a means for equalizing the wear on brake shoes, and permitting variation,

should any part be rendered unsuitable for use.

Still another object of the invention is to usc a brake rigging which is engageable with the upper terminals of said interchangeable levers, and which is changeable to accord with the change of said levers for applying' the brakes.

A further object of the invention is to provide a braking mechanism which is operable by the usual atmospherical source of energy, although suitable means are pro- .vided t'or manually applying the brakes when so desired.

Still another object resides in the peculiar, yet simple arrangement of parts, by which the wheels may be lockedfrom any movement whatsoever if desired, with/out necessitating thev expenditure ot more energy than is used in current air brake system, or without subjecting the parts to undue strain. e

Other objects as well as the nature, characteristic features and scopeof my invention `will be more readily understood from the following description taken in connection with the accompanying drawings and pointed out in the claims forming a part of this specification.

Referring to the drawings:

Figure 1 is a top plan view of a brake rigging constructed in accordance with my invention,v a portion thereof being broken away, the rigging being applied to al car truck, the latter being shown in dotted lines;

Fig. 2 isa cross Sectional View on the same; .v

Fig. 3 is a top plan enlarged view of a Specification of Letters Patent.

aten'ted Mar. i3, 1917. 191e. serial No. sane. i

portion of the brake rigging shown in Fig.. 1showingone of therlevers, afterf pressure has been exerted thereon;

Fig. i is a cross sectional View of a portion of a ear truck embodying a modification of my brake rigging, and more specially of the brake shoe supporting leversg i y Fig. 5 is aperspective view of one of the shoe trames used in this invention;

Fig. (i is a plan' view of a. portion of one oi the detachable bolster engaging shoe supportingbrackets used in thel invention', showing a modified form over that illustrated in Figs. l, 2- and ai;

l41 ig. 7 is a cross sectional view of 'the bracket por so; A

Fig. 8 fs a' top plan view of two modified lorins of my invention illustrating the application of the saine on a kcar truck equipped with lbraking levers as shown in ligsj'Z and 4;; l y f i Fig. 9 is a plan view"` of anotherpair of modified brake operating 'rifieansgk illustrating cables for use in the'capmiity of the levers shown in Fig. 8;

Fig. l() is a side. elevational view of one-v oit' the hangers and pulley housing used in the present invention,

i n Fig. llis a cross sectional view oi the hangerssho'wn in Fig.y S, to which an equalizing beam is pivoted.

Fig. l2 a detail fragmentary bottom plan view, partly in section, of my invention, showing to advantage the connection between one oi the side frames and shoe supporting lever brackets.

ln the drawings a detail description of li`igs. l, 2 and 3 will tiret be 'given in order lthat a clear understanding may be had oi this forni ot the invention, in contradistinction to the forms shown in the other views. ln this ifoim ot the invention a bodyfplate l is provided which in this instance is of a substaiitially oblongconfiguration, one end ,thereof being.v `bit'iircated' and having` the stantially parallel relation with the longitudinal `axis of the body, providing spaced ears "2, which are adapted to receive. the upper free terminals of the brake supportii'ig levers 3 therebetween. Portions on the opposite 'sides of said ears 2 are' extended and i'el branches of th'ebii'urcation twisted into subforming a part of the brake rigging, as illustrated to advantage in Fig. 3. The oppbsite end of the body l is also bifurcated so as to provide an elongated slot (i therein in which the upper terminal of one of the bi'ake supporting levers 3 is mounted for movement. It will be noted thus far that .the levers which are mounted between the ears 2 and in the elongated slot 6 are'associated with different bra-ke shoes, and are adapted for movement in either coincident or counterdirection therein as willbe more fully hereinafter set forth. A Heating bar 7 is superposed upon each of the body bars 1, one end of each of said floating bars being bifurcated as indicated at 8 for pivotal connection with the upper terminal of one of the shoe supporting levers 8, while an incision is formed along the longitudinalv axis of vt-he opposite end, permitting said ends to be folded one over the other as at 9, for pivotal engagement with the rockable lever It will be noted that an aperture l() is arranged in the free terminal of the lever 5, which is adapted for alineiiient with openings 11 in the loop portions el of Said body plate 1, whereby the fulcruin point of said lever 5 may be shifted, when it is desired to change the direction of movement of the brake shoe 4supporting levers 3 and 15.

The means by which pressure is exerted upon the rockable levers 5, consists of parallelly arranged bars 12, one end of each of which is pivotally engaged with one of the' levers 5, while the opposite end of each is in pivotal engagement with an equalizing beam 13, the latter being pivotally engaged, approximately midway itsend, with a power rod 1J( as shown in Fig. 1. The power rod 14- is ot' course engaged with a source of energy in the usual or any desired manner.

The lpwer ends of the brake supporting levers are extended and have the teri'iiinals thereof enlarged toprovide shoes for engagement with the track over .which the wheels ot' the rolling stock pass.

In operation, it is understood that as soon as pressure is `'exerted upon the power rod 14, that motion will be intercoiiiinunicated to the shoe supporting levers 3, which will lthrow the brake shoes 19 in counterdirections for snug engagement with the peripheries of the truck Wheels. The rail engaging shoes 3 will, of course, be simiiltaneously engaged with the rail track, thereby obtaining a positive braking action. I

In Fig. 4 a precise construction to that shown in Figs. 1, 2 and 3 is illustrated, with l the exception that instead of using the brake supporting levers 3, a varying form is illustrated, which is indicated in Fig. 4 at 15. The levers shown in this view are of an arcuate configuration, conforming substan tially to the contour of the car wheel, `having their inner terminals enlarged so as to vbracket 23 is integrally fornied.

provide reinforced ends for pivotal engagement with the ears 16 ot the brake shoe frame 17. The levers 15 are pivotally en-v gaged with a bracket 215 which is also of a form variant to that shown in Figs. 1, 2 and an arcuate configuration and is providedv with apair ot' parallelly arranged apertured ribs 18 which extend transversely of the trame. appioxiiiiately midway its end, for

pivotal engage-nient with a complemental ear on the back of the brake shoe 19. The opposite ends of said frame are'provided with side flanges 2() which co-act with corresponding ribs 21 on the backs of said shoes 1S), in order to prevent casual displacement of the latter, for insuring a positive braking action at all times. By thc peculiar formation shown however it will be appreciated that the shoes 19 may be readily removed when so desired, so as to permit substitution of new ones therefor. lhe shoes 19 are provided with abutineiits :2:2 on their opposite terminals, in order to prevent vertical movement of the saine.

Fig. 12 illustrates to advantage the connection between one of the side frames and brackets which supports the .shoe supporting levers. In this instance a portion of one side frame 53 is shown, upon which the Portions of the b 'acket are extended laterally to pro- .vide the cars/Qi.

lwhich is adaptable for use with standard types of holsters or spring planks, which may be expeditiously associated therewith when.

desired. A bracket is indicated at 223 and in this instance is of a U-shape configuration, for engagement with the outer tace ot the spring plank 23, the application of which is illustrated in Fig. G. Ears 24 extend laterally from said bracket and aie adapted for pivotal engagement with the shoe supporting levers in eitherrthe form as shown in Figs. 1 and 2, or as that shown in Fig. Jr.

Fig. 8 discloses two diii'ereiit forms of biake rigging, one of which is associated with the brake shoes on one side of the tr while the other is associated with the brake shoes on the other side of the truck. Re

:carenze ferring primarily to that form shown o'n the left side, it will be noted that hangers .25 are pro-vided, which are adapted to be pendently supported by the car body in the usual manner, certain of which are adapted lor pivotal engagement with certain of the equalizinof beams, one of'wliich is indicated at 26 on the left side of the view shown in F ig. 8. Other of said beams are. adapted to be fioatingly arranged in certain ot' said hangers, one being shown on the lett side ot' Fig. 8 and indicated at 27. The brake shoes and brake `suljipo'rting levers are associated with the spring plank, the same as shown in either' Figs: 1, 2 or i, the shoe supporting levers being indicated in this instance at 2S,\in order that the drawings may be comprehensively understood. A n elongated rod extends from the pivoted equalizer beam.

26 to the floating beam 2T, being equipped in its opposite end with eyes for pivotal engagement in complemental openings on the inner terminals ot' said beams 2G and 27. ffhe outer terminal of each of said beams is adapted ior movable engagement with one end ot a link Z50, the opposite end ol each of said links being provided with an enlarged eye 31, whit-his movably engaged with the upper terminal of a lever From this construction it will be appreciated that as soon as prcssu re is exerted upon the floating beam 2T, that motion will be imparted, in counterdirection, to the levers 2S, so'that this construction oi rigging would be especially adaptable for use in connection with the form ot' brake supporting lever as shown in 1 and 2.

The 'form shown onthe right side ot Fig. 8 embodies exactly the same construction,

as regards the hangers and beams, as that shown on the lett side. of the drawings.

Variation in the rods, or levers is made inasmuch as two rods are used in the place ot the one rod 2f), each of said rods 32 being provided with inner threaded terminals which carry a turn buckle 34' thereon, wherebysaid rods 3:2 may be adjusted. The outerterminals oi said rods are adjustably mounted in apertured supporting links 55, the latter' beingin turn 'pivotally engaged with the pivoted and lioating beams. This construction will permit of a double adjustmentot the rods 3Q, since they may be moved by turning the turn buckle 3l, or by changing the position of the outer ends of said rods which engage the apertures of the members 85.' in this vform rods 3G supplantthe rods 30 and are relatively longer than the latter, since each ot the rods 36 is adapted' to engage the b Iako lever which is the farther spaced from ,the beam to which the' rod is secured., ln

'use of this form will seem that the ex'- ertion or" pressure upon the floating beam will impart .movement to the rods 36'50 .and subsequent results'.

as to operate the two supportingilevers in .a direction toward each other, this Jform being especially adapted :tor use with the type of lever shown in Fig. l of the fdrawlngs.

' A main equalizing beam 37' is iioatingly mounted in hangers 38, the opposite ends thereof being in connection with the iioating beams of the brake rigging shown on both the right and lett. hand sides ot' Fig. S, whereby motion will be simultaneously'imparted to said auxiliary floating beams, when pressure is exerted upon the main beam 37. A power bar Pfl is in operative connection with the main beam 3T, one end thereof being pivotally mounted in` a hanger 4() while the opposite end is movable in a horizontal are, from an atmospherical source of energy, in this instance being in connection with a piston rod'all, It istherefore. seen that the brakes may be applied, it-desired, in the usual manner, by the use. of the air brake system now used, or it desired may be operated 'n'iechanically, by

placing a chain 42 in connectiony with a;

v erated, independently ot' the other, whereby application ot' the brakeswill at all times be insured. v, 4 i

desired, the parts 1, 5, 7, 12 and 14, as showii in Figs. 1 to may be removed. and replaced by either form of riggingas shown in Fig. S, to harmonize with the change of the brake shoe lever ulcruni.A Di'l'l'ereut'species of rigging may in this way be used/for different classes oi work, `with the same sum total result.' l. i

1n Fig. f) l haveishown a formfot inven-l tion which simulates the construction shown in Fig. S, and differs therefrom only in construction, but not in inode oit operation In Fig. 5), l have on the lett side ot this view'shown a hanger 43, which is adapted to be supported by the rar body, and in which is jolurnaled a pulley wheel lei, A second hangeras indicated at l5 is provided, which is spaced from the vhanger i3 and ott-set therefrom, said hanger fifi yhaving pivotally mounted thereon, one

end ot a supporting arm 4G, the opposite.

with rings 49, which in turn are pivotally engaged with the upperI terminals ofthe .shoe'supporting levers 50 as shown in dotted lines.

The construction shown in the right hand Side pf aas View is desatar aah einem Shown in the left side, with the exception that the cable, as indicated in this view at 5l, is extended and has the opposite ends thereof crossed for engagement with the brake supporting levers which are farthest remote from the pulley wheel, about which its respective cable engaging end has been passed. v

ln the operation of this form pressure is exerted upon the arms 4G, which movement will bodily actuate the pulley wheels 47 thereof, so as to exert pressure upon the cables 4S brake levers.

It will be understood that the above description and accompanying drawings comprehend only the general' and preferred embodiment of my inventiolr and that various mino-r changes in details of construction, proportion and arrangement of parts may be made within the scope of the appended claims without sacrificing any of' the advantages of my invention.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is:-

l.. A brake rigging for rolling stock including brake shoe supporting levers, the fulcrum points of said levers being changeable to vary the strain on said shoes, and mechanism engaged with said levers to operate the"latter, the fulcrum point of Said mechanism being changeable to accord with the change of levers for positively applying the brakes. l

2. A brake rigging in combination with brake shoes, levers in connection with said shoes Ito operate the latter, and means oom- Inon to all of said levers for simultaneously exerting pressure on said. shoes, the points of connection between said shoes and said levers being interchangeable, to permit operation of the levers toward or away from each other for applying the brakes.

3. A brake rigging for rolling stock inclue ing brake shoe supporting levers pivotally carried by the rolling stock and equipped with shoes, the fulcrum points of said levers and 51, consequently operating` the being changeable to permit the upper terminals of said levers to be moved toward or away from each other for applying the brakes, and means connected to the upper terminals of said levers and changeable to accord with the change of 'the fulcruni points of the levers, substantially as set forth.

Ll. A car brake mechanism including, in combination with shoe supporting levers, a body bar for association with a pair of said levers on one side of the car, one oi said levers being iixedly connected with said bar, to operate simultaneously therewith, the otherlever being` independently movable oi' said bar, a floating!` bar carried by the body bar and being` in connection with said independently movable lever to operate the latter, means pivotally engaged with said body bar and floating bar, said shoe supporting levers being simultaneously operable by the exertion of pressure upon said means to apply the brakes.

A. car brake operating eluding, in combination with porting levers, a body bar for association with a pair of the levers on one side oi1 the car, one end of. said bar being lixedly engaged with one-ot' said levers, whereby the latten mechanism in brake shoe supis moved simultaneously with the movement v of said bar, the opposite end of said bar being slidably engaged with the opposite lever to provide a` guide, a floating bar, one end oi which is in engagement with said lever which is slidably mo fabe with the body bar, a floatM ing lever, one end of which is in pivotal engagement with said floating bar and with one side of said body bar, whereby exertion of ,pressure upon said floating lever operates said brake supporting levers in opposite directions,"

In testin'iony whereof l ailix my signature in presence of two witnesses.

U THOMAS F. TOR'HNSN. ll'itnesses M. (l. lvlULvEY, l D. O. Nnwnnnn'r. 

